Maryland Category 7D – Rodent Control Biology, Inspection, And IPM Strategies Practice Exam

Rodents seek shelter and protection close to buildings, using vegetation as hidden pathways and nesting sites. Dense, ground-hugging plants and low shrubs that sit right against a structure create continuous cover at the foundation, giving rodents an ideal place to hide, move unseen, and access the building. Thorny shrubs add structure and microhabitats that further shield rodents from predators and disturbances while keeping the area close to entry points. This combination therefore offers the most favorable harborage conditions. In contrast, open, well-lit walkways expose rodents to predators and visibility, reducing shelter; tall grasses near doors provide some cover but not as consistent or close-to-the-foundation concealment as low, dense vegetation; paved surfaces with no vegetation offer virtually no shelter.